<< >> NASA ASRS Report 426252, January 1999

Right main wheel assembly of an light transport turboprop came loose during landing resulting in the wheel swiveling 90 degrees out of alignment and the aircraft becoming stranded on the runway.

Attributes
ACN	426252
Time
Date	199901
Day	Tue
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : bos
State Reference	MA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : cfi
Experience	flight time last 90 days : 180 flight time total : 2600 flight time type : 1300
ASRS Report	426252
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : critical other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	other
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

The incident occurred at XA05 on runway 22L at bos airport. During the landing rollout, the scissors on the right main gear came apart at the hinge point due to the bolt having fallen loose. This allowed the right main to freely castor, and it began to shimmy as we slowed in the rollout. The gear eventually turned 90 degrees, bringing the aircraft to a stop. Bos tower closed runway 22L until we were safely towed clear at XA25. In this reporter's opinion, thorough preflts and routine maintenance inspections are measures already being taken to help prevent a recurrence.

Related reports:

• A wheel assembly fell off of an air carrier medium large tra...
• Advtech medium large transport flight crew encounter rudder ...
• Medium large transport taxiing has brake assembly seize and ...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: R MAIN WHEEL ASSEMBLY OF AN LTT TURBOPROP CAME LOOSE DURING LNDG RESULTING IN THE WHEEL SWIVELING 90 DEGS OUT OF ALIGNMENT AND THE ACFT BECOMING STRANDED ON THE RWY.

Narrative: THE INCIDENT OCCURRED AT XA05 ON RWY 22L AT BOS ARPT. DURING THE LNDG ROLLOUT, THE SCISSORS ON THE R MAIN GEAR CAME APART AT THE HINGE POINT DUE TO THE BOLT HAVING FALLEN LOOSE. THIS ALLOWED THE R MAIN TO FREELY CASTOR, AND IT BEGAN TO SHIMMY AS WE SLOWED IN THE ROLLOUT. THE GEAR EVENTUALLY TURNED 90 DEGS, BRINGING THE ACFT TO A STOP. BOS TWR CLOSED RWY 22L UNTIL WE WERE SAFELY TOWED CLR AT XA25. IN THIS RPTR'S OPINION, THOROUGH PREFLTS AND ROUTINE MAINT INSPECTIONS ARE MEASURES ALREADY BEING TAKEN TO HELP PREVENT A RECURRENCE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.